Parallel Operation Control Strategy of Dual Stator-Winding Induction Generator Systems

When the dual stator-winding induction generator (DWIG) systems run in parallel, the problem of current and power oscillation will occur. It causes the generator to be unable to run stably, and even causes the system to collapse and the damage of devices. For these reasons, a parallel operation control strategy for DWIG system is proposed in this paper. In this strategy, the power distribution link and current sharing loop are added into the traditional independent operation strategy. Then, a simulation model of DWIG parallel operation system is established in Matlab/Simulink. The simulation results show that the proposed control strategy can reduce the current fluctuation and achieve accurate power distribution. The DWIG parallel operation system based on the proposed control strategy has good static and dynamic performance.